Since the renaming was announced, Line began receiving messages of support from London commuters.

Speaking to BBC Radio 5 live, she said: "I got a text from a girlfriend... I was like, 'Oh no, what have I done? Am I going to embarrass my family and my friends?'"

Although online fame comes with its own set of problems. She added: "Many are sympathetic that I will be bombarded with tweets and comments that are supposed to be for TfL about service interruptions in the years to come."

Line rocketed to Twitter fame overnight, and is now seeking advice from another American on the site with a name familiar to British ears: John Lewis.

Lewis, a computer science teacher, takes the time to personally reply to complaints about the high-end UK retailer sent to him by mistake.

.@Oliverzissman The took one look, decided I resembled a multimillion dollar retail conglomerate, and the rest is history.